Chair



FIG. 1 is a front perspective view from above and one side of the chair embodying my new design;

FIG. 2 is a side view of the chair;

FIG. 3 is a rear view of the chair;

FIG. 4 is a front view of the chair;

FIG. 5 is rear perspective view from below of the chair. 

The ornamental design for a chair, substantially as shown and described. 